It's Friday, and that means two things. The weekend's almost here, and so is Firmware Friday, our regular roundup of the latest digital camera firmware updates. This week, we have new firmware to report from both Canon and Panasonic.

Canon's new firmware covers three of its professional EOS 1D-series digital SLRs: the EOS-1D Mark III, EOS-1Ds Mark III, and EOS-1D Mark IV. In all three cases, the firmware makes the same fixes, which resolve issues when there's no lens mounted on the camera body. If any of these cameras were powered on without a lens attached, power consumption could be higher than normal, potentially draining your battery. A shutter release without lens attached could result in an Error 02 message. (Of course, you won't do much shooting without a lens attached -- but when using a mount adapter with no electrical connectivity, the camera might think there was no lens attached.)

Panasonic, meanwhile, has updated two of its Lumix compact cameras: the Panasonic TS5 (known in some markets as the FT5), and the Panasonic LF1. For the Lumix TS5, firmware version 1.3 is said to improve time-lapse shooting functionality. The Lumix LF1 v1.1 update, meanwhile, improves PC / Mac connectivity. Grab the firmware at the links below: